55441580 has 12 divisors (see below), whose sum is σ = 116427360. Its totient is φ = 22176624.

The previous prime is 55441549. The next prime is 55441583. The reversal of 55441580 is 8514455.

It is not an unprimeable number, because it can be changed into a prime (55441583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1386020 + ... + 1386059.

It is an arithmetic number, because the mean of its divisors is an integer number (9702280).

Almost surely, 2^55441580 is an apocalyptic number.

It is an amenable number.

55441580 is an abundant number, since it is smaller than the sum of its proper divisors (60985780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55441580 is a wasteful number, since it uses less digits than its factorization.

55441580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772088 (or 2772086 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 55441580 is about 7445.9102868622. The cubic root of 55441580 is about 381.3102966534.

The spelling of 55441580 in words is "fifty-five million, four hundred forty-one thousand, five hundred eighty".